	US 12,068,456 B2
	Lithium secondary battery with improved safety
Kyoung Ho Ahn, Daejeon (KR); Won Tae Lee, Daejeon (KR); Jun Hyeok Han, Daejeon (KR); Su Hyeon Ji, Daejeon (KR); Chul Haeng Lee, Daejeon (KR); Won Kyung Shin, Daejeon (KR); Young Ho Oh, Daejeon (KR); and You Kyeong Jeong, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Filed by LG Energy Solution, Ltd., Seoul (KR)
Filed on Dec. 13, 2022, as Appl. No. 18/080,451.
Claims priority of application No. 10-2021-0186970 (KR), filed on Dec. 24, 2021.
Prior Publication US 2023/0207878 A1, Jun. 29, 2023
Int. Cl. H01M 10/0567 (2010.01); H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/485 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/583 (2010.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01); H01M 50/46 (2021.01)

CPC H01M 10/0567 (2013.01) [H01M 4/0404 (2013.01); H01M 4/364 (2013.01); H01M 4/386 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/583 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 50/46 (2021.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01)]

12 Claims

1. An electrolyte composition, comprising:

a non-aqueous organic solvent;

a lithium salt; and

an additive comprising a compound represented by Formula 1:

wherein,

each R₁is independently a single bond, an alkylene group having 1 to 10 carbon atoms, or

each R₂is independently a double or triple bond including 2 carbon atoms,

each R₃is independently hydrogen or an alkyl group having 1 to 4 carbon atoms, and

a is an integer of 1 to 10.